In Egypt in 1940, researchers uncovered evidence that one ancient structure was built with eight concave sides instead of four—an astonishing design that suggests its creator possessed mysterious knowledge far beyond their time. #AncientAliens | Ancient Aliens

Humans decode an 'alien message' from Mars. Here's what was hidden in the signal

Warning From Space

Earth Has Received An “Alien Message” From Mars. Here’s How To Try And Decode It